GENEVA & VIENNA--(BUSINESS WIRE)--WISeKey International Holding Ltd (“WISeKey”) (SIX:WIHN), a
leading global cybersecurity company announced today, that they will
embark on a partnership with the Blockchain interface company,
RIDDLE&CODE, to develop innovative solutions for securing Internet of
Things via Blockchain technology and crypto-hardware.

First step is the integration of WISeKey's Global Root and Public Key
Infrastructures into RIDDLE&CODE's hard- and software stack. The
hardware interface is based on combining efficient microcontrollers to
so called crypto-accelerators. The software interface connects this
combination to the web, mobile phones, reader systems and radio
frequency systems like NFC, Bluetooth, ZigBee and low power wide area
networks.

WISeKey has built one of the most innovative smart tags in the industry.
Their Vault IC 15x series is delivering asymmetric key algorithms in
energy harvesting mode. Crypto-chips can be operated without batteries,
only by the induction field of a mobile phone with NFC capability. This
makes it easy and convenient to embed them into any kind of physical
object to protect their authenticity and provenance.

RIDDLE&CODE builds on the inherent capability of the Vault IC product
line and delivers all necessary hard- and software extensions to
integrate Blockchain technology and protocols. By connecting the Vault
IC smart tags directly to Blockchain and connecting them to the web and
mobile phones, the very same security standards get transferred into
physical objects.

Tom Fürstner, RIDDLE&CODE's Founder and CTO, noted: "We all agree on the
urgent need to secure IoT. But despite their enormous potential in this
respect, cryptography and Blockchain technologies have been poorly used
by developers so far due to their massive complexity. A combined
solution of WISeKey's cybersecurity platform and RIDDLE&CODE's hard- and
software stack offers highly manageable solutions using these
technologies. In the near future, millions of web and mobile phone
developers will be able to deliver reliable and secure products and
solutions for emerging markets such as IoT, physical internet, supply
chains, etc."

Carlos Moreno, WISeKey's VP Digital Brand Protection noted: "The more we
are surrounded by the IoT, the more important it becomes the need to
trust all involved devices. WISeKey offers a unique Root of Trust model
that serves as a common trust anchor in the communication among objects
and between objects and people. Especially with our VaultIC product
family, we offer a suite of solution to secure the IoT including the
provisioning services out factory for machine identity and for
authentication. The very same VaultIC chips are used by RIDDLE&CODE in
unexpected innovative ways to combine the power of Blockchain technology
with our current WISeAuthentic platform to facilitate further digital
brand protection issues. Combining the virtues of the two solution
providers guarantees the security and integrity in any kind of
machine-to-machine and human-to-machine communication as a precondition
for business-development in a digital society."

About WISeKey

WISeKey (SIX Swiss Exchange:WIHN) is a leading global cybersecurity
company currently deploying large scale digital identity ecosystems with
a patented process. WISeKey’s Swiss based cryptographic Root of Trust
(“RoT”) provides secure authentication and identification, in both
physical and virtual environments, for the Internet of Things,
Blockchain and Artificial Intelligence. The WISeKey RoT serves as a
common trust anchor to ensure the integrity of on-line transactions
among objects and between objects and people. For more information,
visit www.wisekey.com.

The Blockchain Interface Company RIDDLE&CODE assists institutions,
companies and individuals to master the challenges of our digital
society such as machine identity, product provenance, online fraud,
identity theft and more peculiar problems like cyber insurance, cyber
risk assessment, token investment systems, supply chains, etc. To tackle
the complexity of cryptography related projects, RIDDLE&CODE developed
its own hard- and software stacks. RIDDLE&CODEcombines the
security of smart cards with the potential of Bitcoin Technology and the
Internet of Things (IoT). This is achieved by extending smart card chips
in form and function. This way the sophisticated security measures known
from the credit card industry get transferred into the Blockchain world
and the physical internet. For more information, visit www.riddleandcode.com.

Disclaimer:

This communication expressly or implicitly contains certain
forward-looking statements concerning WISeKey International Holding Ltd
and its business. Such statements involve certain known and unknown
risks, uncertainties and other factors, which could cause the actual
results, financial condition, performance or achievements of WISeKey
International Holding Ltd to be materially different from any future
results, performance or achievements expressed or implied by such
forward-looking statements. WISeKey International Holding Ltd is
providing this communication as of this date and does not undertake to
update any forward-looking statements contained herein as a result of
new information, future events or otherwise.

This press release does not constitute an offer to sell, or a
solicitation of an offer to buy, any securities, and it does not
constitute an offering prospectus within the meaning of article 652a or
article 1156 of the Swiss Code of Obligations or a listing prospectus
within the meaning of the listing rules of the SIX Swiss Exchange.
Investors must rely on their own evaluation of WISeKey and its
securities, including the merits and risks involved. Nothing contained
herein is or shall be relied on as, a promise or representation as to
the future performance of WISeKey.